Abstract
We describe the “deflationary” evolution from an initial de Sitter phase to a subsequent Friedmann-Lemaître-Robertson-Walker (FLRW) period as a specific non-equilibrium configuration of a self-interacting gas. The transition dynamics corresponds to a conformal, timelike symmetry of an “optical” metric, characterized by a refraction index of the cosmic medium which continuously decreases from a very large initial value to unity in the FLRW phase.
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© 2002 Kluwer Academic Publishers
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Zimdahl, W., Balakin, A.B. (2002). Conformal Symmetry and Deflationary Gas Universe. In: Macias, A., Cervantes-Cota, J.L., Lämmerzahl, C. (eds) Exact Solutions and Scalar Fields in Gravity. Springer, Boston, MA. https://doi.org/10.1007/0-306-47115-9_23
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DOI: https://doi.org/10.1007/0-306-47115-9_23
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